Questions tagged [file-compression]
Software that compresses or shrinks the file size of other files (or interacts with other software doing so).
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Need a Windows tool that can compress a file to create a .Z file
Unix has a compress program based on the LZW compression algorithm that creates a file with a ".Z" extension. I would like to be able to do that on Windows. I was surprised to see that 7-...
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0answers
183 views
libarchive is broken for RAR on Linux - any similar C library alternatives?
I'm using libarchive to read and scan through a generic set of archives (mostly 7z, RAR and zip).
The library interface is quite simple and although supports only linear archive processing, doesn't ...
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0answers
4 views
Scheduled compression and delete
I am looking for a software that can do the following:
scan a folder (including sub-folder) for large files (e.g. > 30 MB)
for positive results, compress at original location and then delete the ...
1
vote
1answer
29 views
video compressor specifically for compression videos
The usual zip and 7zip don't do much good when it comes to image or video compression. Anyone knows any good software that is meant to compressor videos or images?
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2answers
29 views
Which Free Video Compressor do you recommend for Windows?
I'm using Windows 7 (I know, quite old), but I'd like to find a video compressor to downsize all of my videos that I put on the computer from my cellphone (they take too much space).
Any ...
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0answers
15 views
Utility to change password of ZIP compressed & encyrpted files
Please recommend a gratis Windows tool that will allow me to change the password of existing ZIP compressed archive files.
I don't need a "cracking" tool. I know the existing password. I ...
asked Nov 25 '20 at 1:42
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0answers
9 views
Lossless Video Compression
Many times I get videos that were originally in resolution 1X but where converted to higher resolution i.e. 4X. If I'll take the 4X video and convert it back to 1X I won't loose any data but reduce ...
2
votes
1answer
74 views
Is there a screen recording software that is simple and creates low file sizes?
My workplace is a school adapting to the pandemic. We need a tool on Windows that will let teachers record their voices while they show the screen, either showing a slide presentation or showing how ...
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0answers
212 views
C++ loading compressed file to memory and reading/extracting particular files within
I am looking for a lossless archive/compression library that supports random-access extraction of particular files, and would also like to perform such extraction in C++, meaning from C++ executable:
...
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1answer
31 views
Autoextract zip files on Windows like Mac OS
Is there a program I can get for Windows that simply extracts zip files I open in the same place with its own folder just like Mac OS?
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0answers
24 views
Software to compress PDF
I would like to compress a PDF file. The PDF size should be smaller than 1MB. Do you know a software that allow to compress PDF files to a given compressed size?
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1answer
173 views
Achieve better compression ratio on 7zip compression
I use an open source compression software named Peazip running on a Intel Core i5-8250U @1.6 GHz processor. However, I have tried compressing files to 7z many times but the compression ratio is hardly ...
1
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1answer
66 views
PDF Compression: Lossless or near-lossless compression options?
I'm looking for a tool for macOS (Windows and Linux would also be nice) that will compress PDFs with a lossless or near-lossless methodology.
There is an interesting discussion for ImageOptim PDF ...
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0answers
9 views
Windows program for automatic image compression
I have a folder that has a lot of images within side it and new images are often put inside there.
However, the images are of high quality and they do not need to be. Thus taking up a lot of extra ...
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0answers
66 views
Tool to convert large Mozilla LZ4 files to plain text?
TL;DR: I am seeking for software to turn Mozilla's headacheful LZ4 garbage into usable plain text.
There is already a scrounger for Mozilla LZ4, which even is supposed to work offline when saving the ...
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0answers
5 views
Which distro supporting ZFS is currently most performant?
I am setting up a networked system for acquiring a large number of streamed camera images (up to 3GB/s of raw tif files; up to 2TB per experimental acquisition). The host that acquires the data will ...
0
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1answer
452 views
What is an alternative for tar (compressor)?
I have a 200MB file. I want to compress this into a small file. Now I'm using TAR. but it only compresses word-like files, not binary files. So, I'm searching an alternative tool for tar to compress ...
2
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0answers
15 views
Windows Explorer that open popular zip files like normal files and folders
Noted that the Windows Explorer in Windows 8, 8.1, 10 are able to open zip files and treat them like normal files and folders.
So, was wondering if there is a better than Windows Explorer that ...
0
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1answer
128 views
Android tools for unzipping corrupt zip files
I had searched for some tools that can unzip files from a large corrupt zip file on android.
I couldn't, so now I learned how to use ZipInputStream in java.
Now I want to share the fruit of my tiny ...
1
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1answer
101 views
General-purpose CLI compression program with good integrity check in Linux
As the title says I am in search for a good, defined as the best available, general-purpose command-line compression program with good integrity check in Linux.
These archives will be used for long ...
1
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1answer
56 views
A single cmd app to support multiple compression format
As you know by default there is one program (command) for each compression format and unfortunately, some of them use a different command for data extraction.
I would like to memorize a single app ...
2
votes
0answers
12 views
Any library in Java or Python for storing lots of small objects in AWS S3 “intelligently”?
I need to store a lot objects in S3, and I need to be able to address each object fairly quickly (maximum of 2 GETs to find one object) and I don't want to be wasteful when comes to the number of PUT ...
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0answers
19 views
on-the-fly compressed volumes for Windows
I am looking for a freeware Windows tool that provides on-the-fly compressed virtual drives stored in files (similar to TrueCrypt disks).
The virtual drive should offer random access and should be ...
6
votes
1answer
85 views
Compressing many similar large images?
I'm dealing with a large archive of satellite images of the Earth, each one taken 15 minutes apart over the same area, therefore they are quite similar to each other. Two contiguous ones look like ...
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0answers
52 views
Zipster alternative for macOS High Sierra
Zipster integrates support for browsing compressed files on macOS Finder but it's been discontinued. The website says:
Support for this product has ended. There are known problems with this
...
4
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2answers
213 views
Which compression utility should I use for an extremely large plain text file?
I have a lot of data. A lot. My data file is a little under 2TB (terabytes) of line-separated plain text records, each about 4 or 5 KB (totaling to a few hundred million records).
I'm prioritizing ...
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0answers
125 views
How to convert to/from a CorelDraw .WI wavelet-compressed image file
I have a large sample of .WI images I need to convert to e.g. JPEGs, but the format now seems defunct.
The mimetype is image/wavelet.
The compression algorithm was developed by Summus, a US company ...
2
votes
1answer
56 views
Differential compression software
Suppose these:
Everyone in the world (or at least my audiences) has downloaded the file ubuntu-16.04.3-desktop-amd64.iso with md5sum of 0d9fe8e1ea408a5895cbbe3431989295 which is approximately 1.5GB ...
2
votes
1answer
57 views
Open source smart extract
I would like a program that:
If top layer of archive is just single item, then extract here
If top layer of archive is several items, then extract to new folder
I see these:
http://softwarerecs....
0
votes
1answer
630 views
Transparent file compression apps for macOS
I'm looking for app for macOS Sierra and above which would allow me to compress files transparently in the background to increase free space which works for macOS Sierra and above.
Basically I'm ...
3
votes
5answers
604 views
Software to compress PDF files
The other similar question is not related to my question and didn't provide answers at all.
So I'm looking for a freeware or opensource software that can compress my 1GB+ PDF files into a reasonable ...
0
votes
2answers
40 views
Secure File Storage
I have some file I want to store that I do not want to be readable with out proper software or conversion. I used to ZIP file until Windows 7 Started to scan the zip file and "Remove Viruses". The ...
1
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0answers
107 views
C++ library to compress files with password protection
I would like to ask for any recommendation for good C++ library to compress files/folders (usually the libs are stream oriented without good file support).
Currently we use minizip (based on zlib) ...
2
votes
0answers
22 views
different methods for rar archives [closed]
When I pack my data to .rar archive, I usually make backup original data. But last time I forgot about backup, and when I opened .rar file, I got - Invalid or corrupt authenticity information. Someone,...
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1answer
67 views
Reducing the file size of scanned letters
History
This is a follow up to and old question from StackOverflow scale and reduce colors to reduce file size of scan
Unfortunately convert of imagemagick is too slow (Sometimes our system receives ...
-1
votes
1answer
61 views
What's the best Windows archive tool (WinRAR, WinZip, etc)? [closed]
I have some data that has been downloaded with the extension .zip or .gz. I always have had WinRAR software installed on my computer and I was always able to uncompress such files.
But last night I ...
1
vote
1answer
761 views
Minification: Renaming/shortening CSS selectors?
I've been looking for tools that minify HTML, CSS and JS together. With that being said, I don't mean just whitespace and comment removal, but also shortening of selectors.
For example
<div ...
3
votes
1answer
73 views
Is there a unified wrapper for python's archive compresson packages?
Python supports a lot of archive formats. I personally know of tar (which supports gzip and bz2), zlib, rar, zip, lzma and 7z.
I find it a bit tedious and error-prone to do auto-detection of these ...
1
vote
1answer
67 views
Need a Software to compress videos
I have many videos that I want to compress. I've tried 7z. But it could only marginally compress a 188 MB video to a 184 MB archive.
Are there any better available alternatives??
I'm willing to ...
2
votes
1answer
57 views
Software to compress, and browse, a website with 1000s of pages
I have a local copy of a website with 98,000 pages (I just checked). The uncompressed size is somewhere around 8gb. I'd like to put it all in one file maybe, and compress it, then just use a standard ...
2
votes
1answer
552 views
PDF compressor software to host on your own server
Goal
A web-based open source software to compress PDF files, to submit files via a browser, but to install on my own Linux server and use its processing power.
Requirements
A web interface. A ...
1
vote
1answer
140 views
Ultimate tool to transfer bytes (copy files, compress, upload, etc)
It will be a long story :)
For the last decade the engineering team (us) have maintained homebrew tool for deployment engineering team written in C# to transfer files across datacenters and recently, ...
3
votes
1answer
70 views
Software that can archive files in a directory into multiple zip files, each holding 10 files
I'm looking for archive software with these requirements:
Ability to archive files into multiple .zip files, each holding a max of 10 files
Compatible with Windows 10
1
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0answers
22 views
Reed-Solomon encoder/decoder
Do you know any free software performing real Reed-Solomon coding/decoding? Or maybe a library that can be utilized to encode and/or decode files with Reed-Solomon algorithm?
4
votes
1answer
380 views
Open source archiver with integrated Error Correction Code
Is there an open source archiver with integrated error correction code? (preferably windows 7, linux is ok, too)
presently the most stable procedure for me seems to be archiving with 7z and then ...
2
votes
0answers
52 views
What tools are available for managed file transfer?
I'm looking for some good examples of Managed File Transfer tools.
This is in an enterprise / corporate setting, where we wish to automate some recurring file transfer tasks. Our bunch of cobbled ...
5
votes
3answers
87 views
Program that zips a group of files into sized chunks, each openable individually
I am looking for a Windows program that can zip a large group of files up and save them to multiple zip files, each (say) no more than 100 MB.
It is critical however that any single zipfile can be ...
1
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0answers
19 views
Parallelized compression libraries with API
I have written a C application which uses libbzip2 to compress and extract some statistical data.
The extraction times are excessive for large-scale datasets. Therefore, I am looking for C or C++ ...
1
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0answers
52 views
Lossless compressing software that grants best compression ratio for everyday purpose and/or for specific tasks
Hello there everybody.
My question should be rather simple for "insiders" (or I hope so at least), so here is the matter: as far as I know and understand, 7zip is currently the best lossless ...
5
votes
2answers
1k views
GUI software to compress and merge PDFs
Compress PDF and Merge PDF are fantastically easy to use. I would highly recommend them had it not been because I cannot guarantee who has access to the data.
So is there free (as in freedom) ...
